业务领域
聚焦于高纯气体，稳定同位素，金属化合物和高纯化学品等化工新材料的供应和销售
Carbon Dioxide - ( CO2 )
Carbon Dioxide is a colorless , odorless , nontoxic and nonflammable gas . It is slightly acidic . It is shipped as a liquefied gas under its own vapor pressure .
| Specifications | ||
| Purity , % | 99.995 | 99.999 |
| Oxygen | ≤5 ppmv | ≤1 ppmv |
| Nitrogen | ≤30 ppmv | ≤3 ppmv |
| Carbon Monoxide | ≤2.0 ppmv | ≤0.5 ppmv |
| Total Hydrocarbons | ≤20 ppmv | ≤4 ppmv |
| Water | ≤8 ppmv | ≤3.0 ppmv |
| Hydrogen | ≤2 ppmv | ≤0.5 ppmv |
| Ship | ||
| DOT Shipping Name | Carbon Dioxide | |
| DOT Classification | 2.2 | |
| DOT Label | Non-flammable Gas | |
| UN Number | UN1013 | |
| CAS No. | 124-38-9 | |
| CGA/DISS/JIS/BS341/DIN477 | 320/716/W22-14R/NO.8/NO.6 | |
| Shipped as | Liquefied Gas | |
| Technical Information | ||
| Cylinder State @ 21.1°C | Liquid | |
| Flammable Limits In Air | Non-flammable | |
| Auto Ignition Temperature (°C ) | - | |
| Molecular Weight (g/mol) | 44.01 | |
| Specific gravity (air =1) | 1.527 | |
| Critical Temperature ( °C ) | 31.04 | |
| Critical Pressure ( psig ) | 1056.29 | |
| Applications | ||
| · Food processing applications: a natural anti-bacterial, carbon dioxide is used to increase the shelf life of many food products . · Mixed with ethylene oxide it is employed in sterilization . · Environmental applications: as an alternative to sulphuric acid for pH balance control · Instrumentation gas used in atomic absorption for elemental analysis . · In optical spectrometry as a component in an instrumentation gas mixture . · As a component in laser gas mixtures . · Component in calibration gas mixtures for environmental monitoring systems . · Medical applications: close-to-physiologic atmospheres for the operation of artificial organs. · Medical applications: as a component in a mixture of oxygen or air as a respiratory stimulant to promote deep breathing . · Semiconductor applications: chemical vapour deposition of silicon dioxide . · As a supercritical fluid in both chromatography and extraction applications . · To implant trace components or color dyes to various polymers. | ||